"West of this Valley [the Cagayán] and separating it from the China Sea, stands a broad and complex system of mountains, known as the Caraballos Occidentales. Its length is nearly 200 miles, and its breadth, including the great spurs and subordinate ranges and ridges on either side, is fully one-third its length. The central range of the system forms the divide between the waters flowing to Cagayán River on the east and those flowing to the China Sea on the west. Its northern part bears the name Cordillera Norte. Farther south it is called Cordillera Central, while the southern portion is called Cordillera Sur." "At its south end the Cordillera Sur swings to the east, and, under the name of Caraballos Sur, joins the Sierra Madre, or East Coast Range." This description, it must be understood, gives no adequate idea of the local intricacy of the system, while at the same time it is precisely this intricacy, both vertical and horizontal, that increases the cost and difficulty of making roads, and that has served in the past to keep the inhabitants of these regions apart. CHAPTER II Annual inspection of the mountain tribes.--We set out from Baguio.--Pangasinán Province.--Agno River.--Reception by the people. Every year Mr. Worcester makes a formal tour of inspection through the Mountain Province to note the progress of the trails and roads, to listen to complaints, to hear reports, devise ways and means of betterment and in general to see how the hillmen are getting on. This tour is a very great affair to the highlanders, who are assembled in as great numbers as possible at the various points where stops are made; during the stay of the "Commission" (as Mr. Worcester is universally called by the highlanders) at the points of assemblage, the wild people are subsisted by the Government. The trip is long and hard, nor is it altogether free from danger. Preparations have to be made two months ahead to have forage for animals, and food for human beings, at the expected halts, while everything eaten by man or beast on the way must be carried by the _cargadores_ (bearers) who accompany the column, since living off the country is in general impossible. Under these circumstances but very few guests can be invited. I was so fortunate as to be one of these in 1910; how fortunate, I did not realize until the trip was over. For although an American may ride alone unmolested through the country we visited, still he would see only what might fall under his eye as he made his way; whereas, on this official trip, thousands of people are brought together at designated points, and one can thus do and see in a month what it would take a much longer time to do and see under one's own efforts.